OTLK Outlook Therapeutics, Inc.
Outlook Therapeutics, Inc. (OTLK) Institutional Ownership
What the institutions did with OTLK last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 4.4M | 21.4% |
| PERCEPTIVE ADVISORS LLC | 3.1M | 15.3% |
| MARSHALL WACE, LLP | 2.0M | 9.7% |
| BlackRock, Inc. | 1.7M | 8.1% |
| JANE STREET GROUP, LLC | 1.4M | 7.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.2M | 6.1% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 968.2K | 4.7% |
| HRT FINANCIAL LP | 784.9K | 3.8% |
| VANGUARD FIDUCIARY TRUST CO | 661.7K | 3.2% |
| GILPIN WEALTH MANAGEMENT, LLC | 555.0K | 2.7% |
| STATE STREET CORP | 539.8K | 2.6% |
| CANTOR FITZGERALD, L. P. | 450.0K | 2.2% |
| Sanctuary Advisors, LLC | 344.5K | 1.7% |
| RAYMOND JAMES FINANCIAL INC | 332.1K | 1.6% |
| GROUP ONE TRADING LLC | 246.4K | 1.2% |
| NORTHERN TRUST CORP | 237.6K | 1.2% |
| SIMPLEX TRADING, LLC | 205.0K | 1.0% |
| LPL Financial LLC | 184.9K | 0.9% |
| UBS Group AG | 152.2K | 0.7% |
| DEUTSCHE BANK AG\ | 130.7K | 0.6% |
| Wealth Management Partners, LLC | 118.2K | 0.6% |
| Jefferies Financial Group Inc. | 62.5K | 0.3% |
| MILLENNIUM MANAGEMENT LLC | 57.8K | 0.3% |
| Tower Research Capital LLC (TRC) | 57.4K | 0.3% |
| Royal Fund Management, LLC | 47.2K | 0.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | Sold Out | 4.2M | 0 | -4.2M |
| PERCEPTIVE ADVISORS LLC | New | 0 | 3.1M | +3.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2.0M | 4.4M | +2.4M |
| MARSHALL WACE, LLP | New | 0 | 2.0M | +2.0M |
| JANE STREET GROUP, LLC | New | 0 | 1.4M | +1.4M |
| BlackRock, Inc. | Increased | 477.5K | 1.7M | +1.2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 134.1K | 968.2K | +834.1K |
| HRT FINANCIAL LP | Increased | 67.8K | 784.9K | +717.1K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 603.6K | 1.2M | +642.3K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 176.5K | 661.7K | +485.1K |
| COMMONWEALTH EQUITY SERVICES, LLC | Sold Out | 470.0K | 0 | -470.0K |
| CANTOR FITZGERALD, L. P. | New | 0 | 450.0K | +450.0K |
| STATE STREET CORP | Increased | 163.1K | 539.8K | +376.7K |
| Sanctuary Advisors, LLC | New | 0 | 344.5K | +344.5K |
| RAYMOND JAMES FINANCIAL INC | Increased | 27.1K | 332.1K | +305.0K |
| Warberg Asset Management LLC | Sold Out | 275.0K | 0 | -275.0K |
| RENAISSANCE TECHNOLOGIES LLC | Sold Out | 255.2K | 0 | -255.2K |
| NINE MASTS CAPITAL Ltd | Sold Out | 232.5K | 0 | -232.5K |
| Connective Capital Management, LLC | Sold Out | 200.0K | 0 | -200.0K |
| NORTHERN TRUST CORP | Increased | 67.4K | 237.6K | +170.2K |
| LPL Financial LLC | Increased | 33.6K | 184.9K | +151.3K |
| GROUP ONE TRADING LLC | Increased | 113.7K | 246.4K | +132.7K |
| DEUTSCHE BANK AG\ | New | 0 | 130.7K | +130.7K |
| Wealth Management Partners, LLC | New | 0 | 118.2K | +118.2K |
| Virtu Financial LLC | Sold Out | 112.8K | 0 | -112.8K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.